Jennair electric range 2B ceran module - one burner not working

Purchased in 2/04, the smaller (rear) burner on the modular radiant cooktop module stopped working. the front burner works fine. the control knob light indicates power source is functional, and plug is clean.

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Range: Gas burner won't spark or ignite
A surface burner igniter switch and a spark module activate the spark electrode when a burner is turned to the "Lite" position on a gas range's cooktop. If the surface burner switch, spark module or wiring in that circuit fails, the spark electrode won't work, and as a result the gas burner won't light. If those components work but the electrode won't spark, the problem could be that the spark electrode is coated with spilled food of is bent or broken. In addition, the electrode won't spark or ignite the burner properly if the ceramic insulation sleeve below the tip of the electrode is cracked or broken. If the gas burner isn't lighting, these repairs may help.
Range 101

Replace the spark igniter electrode

The spark igniter electrode-also called the surface burner igniter-is an insulated electrode that provides an ignition spark to light a surface gas burner. It sparks and makes a ticking sound when the burner switch is turned to the Lite position. Replace the spark ignition electrode if it fails to spark or if the ceramic insulation sleeve is cracked or chipped. How to Replace a Spark Igniter Electrode in a Gas Range Find This Part

Replace the surface spark module

The surface spark module is in the ignition circuit for the gas surface burners. When a surface burner control knob is turned to the "Lite" position, it provides voltage to the spark electrodes on the gas surface burners. If the surface spark module fails to provide the electrodes with voltage, then it should be replaced.
Find This Part

Replace the spark igniter switch

The igniter switch is an electrical switch on the stem of the gas surface burner control valve. This switch completes a circuit to the surface burner spark module, causing the burner igniters to spark when the burner switch is turned to the Lite position. Replace the burner igniter switch if the burners don't spark when you turn the burner control knob to the Lite position or if igniters spark constantly even when the burner knobs are in the Off position.

Most newer ranges with sealed burner cooktops can be a little bit tricky to open. People have a tendency to try and lift the cooktop up like on the older ranges and end up damaging the range and causing a gas leak. The first thing to do is to unplug the range of course. Then start by removing the rear panel of the range. From there you can get a visual feel of what you are up against. With the back panel removed you should be able to see into the top part of the range. Most newer sealed burner cooktops require you to disconnect the screws holding the burner tubes to the bottom of the cooktop. If you do not remove these screws you will break the tubes when you lift the cooktop. Most of the time the screws are removable from the top at the burner heads. Once these screws are removed you should be able to lift the cooktop up. From there the ignition wiring and spark module should be available now for servicing.

If you are referring to the bakelight material, this is an insulating compound and the burner still may work. I would not use this long term in this manner however. This material insulates as well as helping maintain an even heat transfer of the burner. Long term use, may cause damage to the cooktop. The burners are replaceable, but the prices vary depending on the size of the burner. The part numbers are as follows:

What are you using to clean the stove? Only cleaners made for ceran type tops should be used according to directions. Do not use enamel coated pans or glass pans on your cooktop.If you have a boil over, turn off the burner and change to a different burner immediately. Clean up the spill completely before cooking on that burner again. Use a flat edge razor to clean tough residue. Your cooktop will look new for years to come, even with heavy use.

As far as the scratch, don't use abrasive cleaners on the top and only use pots and pans with flat bottoms. If you do use cast iron pans, never scoot them around on the top.

pull off your selector knob and shine a flashlight down the shaft, depending on your model, you may have the adjustable mmodel
at the bottom of the selector shaft, you may see a flat head screw adijudt it at ver small increments
i believ a 1/4 turn in should turn your flame down quite a bit

This is a very strange one, and you don't say how old this unit is or how long you have had problems with it, but most likely you have a poor electrical connection. Turn the breaker off and unplug the range. Remove the cover over the receptacle you just pulled the plug from and check all the electrical connections. If all OK, check the electrical connections where the cord attaches to the range. If still OK, inspect additional range and household wiring to range, including the connections right on the circuit breaker.

try clr from a local supermarket.it comes in a green plastic bottle.wipe the burner generously but not soaking wet with it and turn the burner on the lowest setting.then use a metal scouring pad and LIGHTLY scour the burner.